Sorry to (do something)

This is a way to apologize for a small mistake you made. When you make a larger mistake and want to apologize more strongly, you can say "I'm sorry for ___ing":

I'm sorry for making you wait so long.

But being 5 minutes late to a lunch appointment is not a big mistake, so saying "Sorry to keep you waiting" is a perfect way to apologize.

This phrase appears in these lessons: